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Valve attachment, valve and method for controlling a valve

A technology for attachments and valve components, applied in the direction of valve operation/release devices, valve details, valve devices, etc., which can solve the problems of known valve attachments such as multifunctional limitations and cost increases

Active Publication Date: 2019-12-20
DANFOSS AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in increased cost, resulting in limited versatility of known valve attachments

Method used

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  • Valve attachment, valve and method for controlling a valve
  • Valve attachment, valve and method for controlling a valve
  • Valve attachment, valve and method for controlling a valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] exist figure 1 In , a simplified description of a valve 1 according to the invention is shown. Figure 2 to Figure 7 Six embodiments are shown that differ in the sensors used.

[0034] figure 1 A valve 1 comprising a valve housing 2 and a valve attachment 3 is shown. The valve attachment 3 is attached to the valve housing 2 via a connection geometry 4 . The valve attachment 3 comprises an actuator 5 , 7 with an electric motor 5 constructed and arranged to displace a pin 6 via a mechanical part 7 in the given example. The actuator 5 , 7 comprises an electric motor 5 and a mechanical part 7 .

[0035] If the pin 6 abuts against the valve stem 8 , the displacement of the pin 6 also displaces the valve element 9 arranged in the valve housing 2 .

[0036] The illustrated embodiment of the valve 1 is a normally open valve, but a normally closed valve could also be used. For simplicity, the spring biasing the open valve position has been omitted. When the valve 1 is clo...

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PUM

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Abstract

The invention relates to a valve attachment (3) comprising an actuator (5), a pin (6) connected to the actuator (5) and a control unit arranged to control the actuators (5, 7) (11). The actuators (5, 7) are arranged to displace the pin (6), and wherein the valve attachment (3) is constructed and arranged to attach to the valve housing (2) such that if the pin (6) abuts The valve stem (8) arranged in the valve housing (2) then the displacement of the pin (6) also displaces the valve element (9) arranged in the valve housing (2). The valve stem (8) is connected to the valve element (9). The present invention provides a valve attachment that prevents the creation of a gap between the pin and the valve stem during operation of the valve attachment. The solution is that the valve attachment (3) includes at least one reactive sensor (16, 18, 22) for detecting the presence of a gap (15) between the pin (6) and the valve stem (8).

Description

technical field [0001] The invention relates to a valve attachment comprising an actuator, a pin connected to the actuator and a control unit arranged to control the actuator, wherein the actuator is arranged to displace the pin, and wherein said valve attachment is constructed and arranged to attach to a valve housing such that if said pin abuts against a valve stem disposed in said valve housing, displacement of said pin also causes said pin to be disposed in said valve housing. A valve element in the valve housing is displaced, wherein the valve stem is connected to the valve element. The invention also relates to a valve comprising such a valve attachment. Background technique [0002] The above-mentioned valve attachment is attached to the valve housing such that the valve element is actuated by the interaction of the pin of the valve attachment with the valve stem provided in the valve housing. The pin can then push the valve stem against the force of a spring, etc.,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K37/00F16K31/04
CPCF16K31/04F16K37/0041F16K31/53F16K3/00
Inventor 格雷戈尔·坡德扎佐兰·萨坡尼亚
Owner DANFOSS AS